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William F. Northrop
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Journal Articles

Experimental Investigation of Particulate Emissions From an Ammonia-Fueled Internal Combustion Engine

Tejashri Patil, Shawn Reggeti, Seamus P. Kane, William F. Northrop
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2025, 147(10): 101014.
Paper No: GTP-24-1811
https://doi.org/10.1115/1.4068030
Published Online: March 21, 2025
View Article titled, Experimental Investigation of Particulate Emissions From an Ammonia-Fueled Internal Combustion Engine
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Topics: Combustion, Emissions, Engines, Exhaust systems, Fuels, Internal combustion engines, Particulate matter, Temperature, Nitrogen, Hydrogen
Proceedings Papers

Experimental Investigation of Particulate Emissions From An Ammonia-Fueled Internal Combustion Engine

Tejashri Patil, Shawn Reggeti, Seamus P. Kane, William F. Northrop
Proc. ASME. ICEF2024, ASME 2024 ICE Forward Conference, V001T05A001, October 20–23, 2024
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2024-139956
https://doi.org/10.1115/ICEF2024-139956
View Paper titled, Experimental Investigation of Particulate Emissions From An Ammonia-Fueled Internal Combustion Engine
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Topics: Emissions, Internal combustion engines, Particulate matter
Proceedings Papers

Operating Range and Emissions From Ammonia-Hydrogen Mixtures in Spark-Ignited Engines

Evan Swift, Seamus Kane, William F. Northrop
Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T02A013, October 16–19, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2022-91825
https://doi.org/10.1115/ICEF2022-91825
View Paper titled, Operating Range and Emissions From Ammonia-Hydrogen Mixtures in Spark-Ignited Engines
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Topics: Emissions, Engines, Hydrogen, Ignition
Proceedings Papers

Exploring the Benefits of Oxidative Coupling of Methane on Natural Gas Engine Efficiency Through One-Dimensional Simulation

Evan Swift, Chaitanya Wadkar, Hyewon Lee, Satbir Singh, William F. Northrop
Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T02A012, October 16–19, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2022-91822
https://doi.org/10.1115/ICEF2022-91822
View Paper titled, Exploring the Benefits of Oxidative Coupling of Methane on Natural Gas Engine Efficiency Through One-Dimensional Simulation
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Topics: Compression, Gas engines, Ignition, Methane, Simulation
Proceedings Papers

Temperature Dependent Removal Efficiency of Crankcase Control Devices

Myles D. Hicks, William F. Northrop, Daniel Potratz, David B. Kittelson
Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T04A007, October 16–19, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2022-92020
https://doi.org/10.1115/ICEF2022-92020
View Paper titled, Temperature Dependent Removal Efficiency of Crankcase Control Devices
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Topics: Condensation, Evaporation, Filtration, Particle size, Temperature, Ventilation, Particulate matter, Drops, Ducts, Aerosols
Journal Articles

Neural Network-Based Electric Vehicle Range Prediction for Smart Charging Optimization

Matthew J. Eagon, Daniel K. Kindem, Harish Panneer Selvam, William F. Northrop
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. January 2022, 144(1): 011110.
Paper No: DS-21-1162
https://doi.org/10.1115/1.4053306
Published Online: January 25, 2022
View Article titled, Neural Network-Based Electric Vehicle Range Prediction for Smart Charging Optimization
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Topics: Probability, Vehicles, Electric vehicles, Batteries, Cycles, Artificial neural networks, Finishing
Proceedings Papers

Simulation of Turbulent Combustion in Gasoline Direct Injection Spark-Ignited Engines Using a Stochastic Reactor Model

Brady M. Wilmer, William F. Northrop
Proc. ASME. ICEF2021, ASME 2021 Internal Combustion Engine Division Fall Technical Conference, V001T06A001, October 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2021-66622
https://doi.org/10.1115/ICEF2021-66622
View Paper titled, Simulation of Turbulent Combustion in Gasoline Direct Injection Spark-Ignited Engines Using a Stochastic Reactor Model
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Topics: Combustion, Emissions, Engines, Gasoline, Simulation, Turbulence, Flames, Computational fluid dynamics, Cycles, Pressure
Journal Articles

Influence of Fuel Properties on Gasoline Direct Injection Particulate Matter Emissions Over First 200 s of World-Harmonized Light-Duty Test Procedure Using an Engine Dynamometer and Novel “Virtual Drivetrain” Software

Noah R. Bock, William F. Northrop
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. October 2021, 143(10): 102307.
Paper No: JERT-21-1172
https://doi.org/10.1115/1.4050576
Published Online: April 19, 2021
View Article titled, Influence of Fuel Properties on Gasoline Direct Injection Particulate Matter Emissions Over First 200 s of World-Harmonized Light-Duty Test Procedure Using an Engine Dynamometer and Novel “Virtual Drivetrain” Software
Open the PDF for Influence of Fuel Properties on Gasoline Direct Injection Particulate Matter Emissions Over First 200 s of World-Harmonized Light-Duty Test Procedure Using an Engine Dynamometer and Novel “Virtual Drivetrain” Software in another window
Topics: Cycles, Dynamometers, Emissions, Engines, Fuels, Gasoline, Particulate matter, Vehicles, Computer software, Filters
Proceedings Papers

Influence of Fuel Properties on GDI PM Emissions Over First 200 Seconds of WLTP Using an Engine Dynamometer and Novel “Virtual Drivetrain” Software

Noah R. Bock, William F. Northrop
Proc. ASME. ICEF2020, ASME 2020 Internal Combustion Engine Division Fall Technical Conference, V001T04A009, November 4–6, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2020-3027
https://doi.org/10.1115/ICEF2020-3027
View Paper titled, Influence of Fuel Properties on GDI PM Emissions Over First 200 Seconds of WLTP Using an Engine Dynamometer and Novel “Virtual Drivetrain” Software
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Topics: Computer software, Dynamometers, Emissions, Engines, Filters, Fuels, Gasoline, Particulate matter
Proceedings Papers

Thermochemical and Sensible Energy Recuperation Using Thermally-Integrated Reactor and Diesel-Ammonia Dual Fueling Strategy

Seamus P. Kane, Darrick Zarling, William F. Northrop
Proc. ASME. ICEF2019, ASME 2019 Internal Combustion Engine Division Fall Technical Conference, V001T02A011, October 20–23, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2019-7241
https://doi.org/10.1115/ICEF2019-7241
View Paper titled, Thermochemical and Sensible Energy Recuperation Using Thermally-Integrated Reactor and Diesel-Ammonia Dual Fueling Strategy
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Topics: Diesel, Fuels, Engines, Diesel engines, Brakes, Emissions, Heating, Hydrogen, Carbon dioxide, Catalysts
Journal Articles

Hydrous Ethanol Steam Reforming and Thermochemical Recuperation to Improve Dual-Fuel Diesel Engine Emissions and Efficiency

Jeffrey T. Hwang, Seamus P. Kane, William F. Northrop
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research-Article
J. Energy Resour. Technol. November 2019, 141(11): 112203.
Paper No: JERT-19-1122
https://doi.org/10.1115/1.4043711
Published Online: May 17, 2019
View Article titled, Hydrous Ethanol Steam Reforming and Thermochemical Recuperation to Improve Dual-Fuel Diesel Engine Emissions and Efficiency
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Topics: Diesel engines, Emissions, Engines, Ethanol, Exhaust systems, Fuels, Steam reforming, Stress, Diesel, Flow (Dynamics)
Proceedings Papers

Hydrous Ethanol Steam Reforming and Thermochemical Recuperation to Improve Dual-Fuel Diesel Engine Emissions and Efficiency

Jeffrey T. Hwang, Seamus P. Kane, William F. Northrop
Proc. ASME. ICEF2018, Volume 1: Large Bore Engines; Fuels; Advanced Combustion, V001T03A029, November 4–7, 2018
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2018-9753
https://doi.org/10.1115/ICEF2018-9753
View Paper titled, Hydrous Ethanol Steam Reforming and Thermochemical Recuperation to Improve Dual-Fuel Diesel Engine Emissions and Efficiency
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Topics: Diesel engines, Emissions, Ethanol, Fuels, Steam reforming, Diesel, Heating, Nitrogen oxides, Soot, Biofuel
Journal Articles

Considerations in Using Photometer Instruments for Measuring Total Particulate Matter Mass Concentration in Diesel Engine Exhaust

William F. Northrop, Darrick Zarling, Xuesong Li
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2018, 140(11): 112802.
Paper No: GTP-18-1100
https://doi.org/10.1115/1.4040306
Published Online: June 27, 2018
View Article titled, Considerations in Using Photometer Instruments for Measuring Total Particulate Matter Mass Concentration in Diesel Engine Exhaust
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Topics: Engines, Instrumentation, Particulate matter, Photometers, Diesel engines, Exhaust systems
Proceedings Papers

Considerations in Using Photometer Instruments for Measuring Total Particulate Matter Mass Concentration in Diesel Engine Exhaust

William F. Northrop, Darrick Zarling, Xuesong Li
Proc. ASME. ICEF2017, Volume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development, V002T04A004, October 15–18, 2017
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2017-3640
https://doi.org/10.1115/ICEF2017-3640
View Paper titled, Considerations in Using Photometer Instruments for Measuring Total Particulate Matter Mass Concentration in Diesel Engine Exhaust
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Topics: Diesel engines, Exhaust systems, Instrumentation, Particulate matter, Photometers, Carbon, Engines, Acoustics, Calibration, Density
Journal Articles

Tailoring Charge Reactivity Using In-Cylinder Generated Reformate for Gasoline Compression Ignition Strategies

Isaac W. Ekoto, Benjamin M. Wolk, William F. Northrop, Nils Hansen, Kai Moshammer
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2017, 139(12): 122801.
Paper No: GTP-17-1078
https://doi.org/10.1115/1.4037207
Published Online: August 9, 2017
View Article titled, Tailoring Charge Reactivity Using In-Cylinder Generated Reformate for Gasoline Compression Ignition Strategies
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Topics: Combustion, Cycles, Cylinders, Engines, Fuels, Gasoline, Silicon-on-insulator, Temperature, Ignition, Photoionization
Journal Articles

Efficacy of Add-On Hydrous Ethanol Dual Fuel Systems to Reduce NO x Emissions From Diesel Engines

Jeffrey T. Hwang, Alex J. Nord, William F. Northrop
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research-Article
J. Energy Resour. Technol. July 2017, 139(4): 042206.
Paper No: JERT-17-1072
https://doi.org/10.1115/1.4036252
Published Online: March 30, 2017
View Article titled, Efficacy of Add-On Hydrous Ethanol Dual Fuel Systems to Reduce NO x Emissions From Diesel Engines
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Topics: Combustion, Cylinders, Emissions, Ethanol, Fuels, Nitrogen oxides, Temperature, Engines, Diesel, Diesel engines
Journal Articles

Dilution Sensitivity of Particulate Matter Emissions From Reactivity-Controlled Compression Ignition Combustion

Wei Fang, David B. Kittelson, William F. Northrop
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research-Article
J. Energy Resour. Technol. May 2017, 139(3): 032204.
Paper No: JERT-16-1311
https://doi.org/10.1115/1.4035828
Published Online: February 8, 2017
View Article titled, Dilution Sensitivity of Particulate Matter Emissions From Reactivity-Controlled Compression Ignition Combustion
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Topics: Combustion, Compression, Emissions, Ethanol, Fuels, Gasoline, Ignition, Particulate matter, Diesel, Temperature
Proceedings Papers

Tailoring Charge Reactivity Using In-Cylinder Generated Reformate for Gasoline Compression Ignition Strategies

Isaac W. Ekoto, Benjamin M. Wolk, William F. Northrop, Nils Hansen, Kai Moshammer
Proc. ASME. ICEF2016, ASME 2016 Internal Combustion Engine Division Fall Technical Conference, V001T03A019, October 9–12, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2016-9458
https://doi.org/10.1115/ICEF2016-9458
View Paper titled, Tailoring Charge Reactivity Using In-Cylinder Generated Reformate for Gasoline Compression Ignition Strategies
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Topics: Compression, Cylinders, Gasoline, Ignition, Cycles, Combustion, Fuels, Silicon-on-insulator, Pistons, Stability
Proceedings Papers

Efficacy of Add-On Hydrous Ethanol Dual Fuel Systems to Reduce NO x Emissions From Diesel Engines

Jeffrey T. Hwang, Alex J. Nord, William F. Northrop
Proc. ASME. ICEF2016, ASME 2016 Internal Combustion Engine Division Fall Technical Conference, V001T02A007, October 9–12, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2016-9349
https://doi.org/10.1115/ICEF2016-9349
View Paper titled, Efficacy of Add-On Hydrous Ethanol Dual Fuel Systems to Reduce NO x Emissions From Diesel Engines
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Topics: Diesel engines, Emissions, Ethanol, Fuel systems, Nitrogen oxides, Fuels, Cylinders, Modeling, Temperature, Calibration
Journal Articles

Emissions From a Diesel Engine Operating in a Dual-Fuel Mode Using Port-Fuel Injection of Heated Hydrous Ethanol

Alex J. Nord, Jeffrey T. Hwang, William F. Northrop
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research-Article
J. Energy Resour. Technol. March 2017, 139(2): 022204.
Paper No: JERT-16-1145
https://doi.org/10.1115/1.4034288
Published Online: August 17, 2016
View Article titled, Emissions From a Diesel Engine Operating in a Dual-Fuel Mode Using Port-Fuel Injection of Heated Hydrous Ethanol
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Topics: Diesel engines, Emissions, Engines, Ethanol, Fuels, Diesel, Combustion